SOME FOSSIL PLANT TYPES OF ILLINOIS. Raymond E. Janssen. Illinois State Museum Scientific Paper 1, 1940, 124 p.
LEAVES AND STEMS OF FOSSIL FORESTS. Raymond E. Janssen. Illinois State Museum Popular Science Series; v. 1, 1957, 190 p.
THE MAZON CREEK EURYPTERID: A REVISION OF THE GENUS LEPIDODERMA. Erik N. Kjellesvig-Waering. Illinois State Museum Scientific Paper 3, no. 4, 1948, p. 3-46.
PLANTS OF THE PAST. F. H. Knowlton. Princeton University Press, Princeton, N. J., 1927, 275 p.
THE WILMINGTON COAL FLORA FROM A PENNSYLVANIAN DEPOSIT IN WILL COUNTY, ILLINOIS. George Langford. Esconi Associates, Downers Grove, Ill., 1958, 360 p.
THE MAZON CREEK, ILLINOIS, SHALES AND THEIR AMPHIBIAN FAUNA. R. L. Moodie. American Journal of Science, 4th Series, v. 34, 1912, p. 277-285.
INTRODUCTION TO HISTORICAL GEOLOGY. Raymond C. Moore. McGraw-Hill Book Co., Inc., New York, 1958, 656 p.
PENNSYLVANIAN FLORA OF NORTHERN ILLINOIS. A. C. Noé. Illinois State Geological Survey Bulletin 52, 1925, 113 p.
PENNSYLVANIAN INVERTEBRATES OF THE MAZON CREEK AREA, ILLINOIS. Eugene S. Richardson, Jr. Fieldiana: Geology, v. 12, 1956, p. 1-76.
REPORT ON THE CARR AND DANIELS COLLECTIONS OF FOSSIL PLANTS FROM MAZON CREEK. Wilson N. Stewart. Illinois Academy of Science Transactions, v. 43, 1950, p. 41-45.